baber/WOPTO huggingface dataset:
Patent GB-1361497-A (GB)
Title: Electrical supply apparatus
IPC: A61B18/12
Filed: 1971-08-26
Abstract: 1361497 Electrical supply apparatus for surgical instruments SIEMENS AG 26 Aug 1971 [5 Sept 1970] 40201/71 Heading A5R Electrical supply apparatus for surgical instruments comprises a high frequency generator 2 provided with an energy output terminal connected to an output 3 and a neutral terminal which can be connected either to a neutral output 5 or to a further terminal 22 connected to a neutral electrode 23, e.g. an earthed patient supporting surface. When a bipolar coagulating instrument 18 is plugged into handpiece 12 the relay E is in unenergised condition and contacts e 1 , e 2  are as illustrated. Foot switch 25 is operate dto energise relay c and contact c 1  is switched over to be connected with neutral output 5. Contact c 2  is also closed and low power coagulation energy, e.g. 10W is applied to electrode 17 of instrument 18. When a monopolar cutting instrument 14 is plugged into handpiece 12, relay E is energised, changing over contact e 1  and closing contact e 2 . On operating foot switch 25 relay A is energised and high frequency cutting energy, e.g. 400W, is supplied to electrode 13 through contact a. When a monopolar coagulating instrument 16 is plugged into handpiece 12 foot switch 26 is operated to energise relay B to close contacts b 2  and e 2  and apply high power coagulation energy, e.g. 400W. to electrode 15. Thus high power energy can only be supplied to a monopolar instrument.
Patent GB-1002146-A (GB)
Title: Moulding compositions based on elastic and thermoplastic copolymer mixtures
IPC: C08L9/02
Filed: 1962-10-24
Abstract: A mixture of a thermoplastic polymer produced from styrene and acrylonitrile and of an elastomeric copolymer produced from butadiene, acrylonitrile and methacrylic acid contains 0.1 to 5% by weight calculated on the weight of the mixture of an alkaline earth metal stearate as stabilizer or lubricant, but contains no zinc stearate.  The mixture may also contain an antioxidant, e.g. di-(cyclohexylcresyl)-methane, and pigments, e.g. rutile. Specification 837,704 is referred to.
Patent GB-1491668-A (GB)
Title: 1,6,8-substituted-4h-s-imidazo(1,2-a)(1,4)-benzodiazepine
IPC: A61P25/24
Filed: 1976-09-29
Abstract: 1491668 Imidazobenzodiazepines UPJOHN CO 29 Sept 1976 [20 Oct 1975] 40339/76 Heading C2C 8 - Bromo - 1 - dimethylaminomethyl - 6 - (2- pyridyl) - 4H - imidazo[1,2-a][1,4]benzodiazepine and its acid addition salts are prepared by condensing 7 - bromo - 1,3 - dihydro - 5 - (2- pyridyl) - 2H - 1,4 - benzodiazepine - 2 - thione with aminoacetaldehyde dimethyl acetal, cyclizing the resulting benzodiazepinylaminoacetaldehyde dimethyl acetal and introducing the 1- substituent by reaction with dimethylmethyleneammonium chloride.  These compounds are antidepressants and anxiolytics, and may be administered in the form of pharmaceutical and veterinary preparations containing them in association with a carrier.
Patent GB-913723-A (GB)
Title: Process and device for finishing textile fabric webs
IPC: D06B1/14
Filed: 1960-11-24
Abstract: <PICT:0913723/IV (b)/1> <PICT:0913723/IV (b)/2> A textile fabric web 14b, Fig. 8, is coated or impregnated with a synthetic resin, e.g. by spraying or by roller-coating, Fig. 5, the coated web being passed round a perforated drum 12b rotating in a stationary casing 13b, the peripheral space between the drum and the casing being divided by radial partitions 8b into treatment chambers 1b . . . . 7b, e.g. for heating, cooling, or calendering.  In one embodiment the liquid resin is sprayed in the chamber 1b either directly on to the web or into the air-stream circulated by a blower 9b.  Heating elements, e.g. electric induction heaters, are located in the chambers 2b and 5b . . . 7b to dry and condense the coating, and heating or cooling means are located in the chamber 3b.  Heated calender rollers 17b of adjustable temperature and pressure are provided.  In a modification, Fig. 5, the web 14a is pre-heated by infra-red and coated by a roller 17a before entering the casing, where it is heated and cooled.  In another modification, Fig. 1 (not shown), the apparatus is similar to that shown in Fig. 8, but the rollers 17b are omitted.  The speed of the web and the temperature and velocity of the circulating air are adjustable, and the casing 13b may be provided with adjustable air intakes and outlets.  The drum may have internal partitions.  It is stated that a porous coated textile fabric may be produced by the invention, the pores being formed by air drawn through the coated web by the blower 9b. The rolls 17b may be patterned or may be glazing or embossing rolls.
Patent GB-1470746-A (GB)
Title: Sealing arrangement for brake housing
IPC: F16D65/853
Filed: 1975-10-03
Abstract: 1470746 Seals CATERPILLAR TRACTOR CO 3 act 1975 [15 Nov 1974] 40655/75 Heading F2B In a dual endface seal having stationary seal rings 36, 36<SP>1</SP> a lubricant/coolant circuit is fed through pressure-reducing bleed holes 48, in rings 47 and 47<SP>1</SP>, so as to provide adequate coolant flow without the fluid pressure, in chambers 45 and 45<SP>1</SP>, having to rise and produce a high interfacial pressure between the seal rubbing surfaces. The rings 47, 47<SP>1</SP> may be of resilient material. The coolant is also circulated around a disc brake which is actuated by a piston (24, Fig. 1, not shown).
Patent GB-863180-A (GB)
Title: Laevo-1:2-diphenyl-1-dimethylaminoethane and acid addition salts thereof
IPC: A61K31/135
Filed: 1958-12-17
Abstract: The invention comprises l-1:2-diphenyl-1-dimethylamino-ethane, acid addition salts thereof and their preparation by (a) methylating l-1:2-diphenyl-1-aminoethane which may in turn be prepared by resolution of the racemate; (b) resolution of the racemate of 1:2-diphenyl-1-dimethylaminoethane; (c) hydrogenation of l- 1:2-diphenyl-2- halogeno- 1 -dimethylamino ethane which may in turn be prepared by halogenation of 1:2-diphenyl-2-hydroxy-1-dimethylaminoethane; and (d) methylation of l-1:2-diphenyl-1-methylaminoethane which may in turn be prepared by resolution of the racemate.
Patent GB-1314605-A (GB)
Title: Hot food container
IPC: B65D43/16
Filed: 1970-08-25
Abstract: 1314605 Boxes STANDARD OIL CO 25 Aug 1970 [25 Aug 1969] 40881/70 Heading B8P [Also in Division F4] A hot food container is made from a continuous sheet of foamed plastic and comprises a tray 10 and a cover 14, each having a bent divider and support member 48 and 50 respectively which divides the tray or cover into cavities and abut the other member when the cover is closed, the tray having a lip 26, and an upstanding inclined flange 38 to grip lip 84 of the cover. The side walls of the tray have flanges 40, (42) extending from flange 38 and tapering to zero height adjacent hinge section 16. At the end of each member 48, 50 there is a flat area 58 (60), 100 or (102) of less height than the ridge 52 or 94 of the member. The cover has indentations 104, 106 to receive respectively containers and cartons stacked thereon. The tray may have up to five cavities.
Patent GB-939393-A (GB)
Title: Process and apparatus for the manufacture of ªå-olefinic polymers
IPC: C08F10/00
Filed: 1961-11-16
Abstract: <PICT:0939393/III/1> Oligomers of ethylene having 4-20 carbon atoms which are predominantly straight chain alpha-olefins are obtained by polymerizing ethylene in the presence of triethyl aluminium triethyl but without additional cocatalysts at 225 DEG -350 DEG C. and above 25 atmospheres with a residence time of 0,1 second to 20 minutes in a reaction space having a heat-removing surface of at least 1 sq. cm., preferably 2-10 sq. cms., per ml. of capacity. Preferred pressure-temperature combinations and the associated residence times according to the amount of catalyst used to produce either butylene or higher polymers are illustrated graphically.  The triethyl aluminium is used in a weight ratio to ethylene between 1:1 and 1:1,000 and is added as such or as a compound forming triethyl aluminium with ethylene or diluted with (C2H5)2AlX where X is halogen or an alkoxy group.  The reactor preferably comprises two concentric helical tubes embedded in an aluminium block, one ((a), Fig. 3) forming the reactor and having smaller preheater and quenching spirals and the other (b) for cooling fluid.  Heaters (c) are provided for starting the reaction.
Patent GB-1328561-A (GB)
Title: Electro-acoustic transducers
IPC: G10K11/02
Filed: 1970-08-26
Abstract: 1328561 Acoustic impedances PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Aug 1970 [29 Aug 1969] 41103/70 Headings H3U and H4J An electro-acoustic transducer such as a microphone has a housing with openings closed by acoustic resistances in the form of plugs of sintered silicon carbide.
Patent GB-975635-A (GB)
Title: Improvements in and relating to endless conveyors
IPC: B65G15/52
Filed: 1961-10-31
Abstract: 975,635. Endless conveyers. W. T. TEAGLE. Oct. 31, 1962 [Oct. 31, 1961], No. 41173/62. Divided out of 975,634. Heading B8A. An endless conveyer comprises a plurality of laterally extending rods or bars 6 connected together at their ends by longitudinally extending endless rubber webs 1 formed for positive engagement with a rotatable driven member (not shown). Some of the rods 6 are held in position in through bores of the webs 1 by split pins 8. The remaining rods 6 are disposed in blind bores 3 of the webs 1.
Patent GB-1493738-A (GB)
Title: Curable mixtures based on polyimides of unsaturated dicarboxylic acids
IPC: C08G73/06
Filed: 1975-10-09
Abstract: 1493738 Unsaturated imide polymers CIBAGEIGYAG 9 Oct 1975 [10 Oct 1974] 41486/75 Heading C3R Curable mixtures comprise (a) one or more imides containing at least two radicals where D contains olefinic unsaturation, and (b) indole and/or one or more indole derivatives where R 1  is H, C 1-4  alkyl or C 2-5  acyl and R 2  is H or C 1-4  alkyl. The mixture may also contain catalysts, e.g. radical-formers, Friedal Crafts and basic catalyst, e.g. primary, secondary or tertiary amines, quaternary ammonium compounds or alkali metal alcoholates or hydroxides; primary amines such as 4,41-diaminodiphenylmethane are stated to be co-reactants with a catalytic effect. The mixtures may contain 0À005 to 1 mole of (b) per equivalic of imide in (a). Curing may be effected in the melt at 100 to 260 C. or in solution at 25 to 150 C. A prepolymer may be formed by including only part of one reactant and heating to 50 to 150 C. and adding the remainer for the final curing. Conventional fillers, plasticizers, pigments, dyes, mould releasers or flameproofers may be included, e.g. glass fibres, mica, kaolin, colloidal silica, metal powders or Ca stearate. In specific examples (a) is N,N<SP>1</SP>-4,4<SP>1</SP>-diaminodiplienyl methane-, ether- or thioether-, bismaleimide or the trismaleimide of tris(4- aminophenyl)phosphate, (b) is indolo or N- methyl indole; most examples include benzimidazolo as catalyst. Reference is made to Specifications 1,190,718 and 1,137,592.
Patent GB-892992-A (GB)
Title: Improvements in or relating to machines for treating chocolate
IPC: B01F29/64
Filed: 1959-12-07
Abstract: 892,992. Mixing chocolate. BAUERMEISTER MASCHINENFABRIK UND MUHLENBAU G.m.b.H., HERMANN. Dec. 7, 1959 [Jan. 24, 1959], No. 41509/59. Class 86. A chocolate conching machine comprises an inclined cylindrical rotating drum 2 having a coaxial shaft 4 carrying a scraper 5 for the container walls; a disintegrating knife 7 parallel to the shaft and carried by arms 6 set at an angle of 120 degrees to the scraper; and a shot conveying screw 8. The shaft may be held stationary relative to the rotating drum, or may be rotated in counter-direction thereto; in either case the screw 8 acts to raise the chocolate mass. The screw is about one-third the diameter of the drum. The arms 6 may also have cutting edges and the knife 7 may be inwardly inclined, see Fig. 3 (not shown). In operation the shaft is first held stationary with the knives 6, 7 facing downwardly, the machine charged and the drum started. When the crumbly chocolate mass is converted into a thick paste, counter-rotation of the shaft is begun.
Patent GB-977789-A (GB)
Title: Emetine derivatives and their preparation
Inventor: WALKER THOMAS
Filed: 1960-12-02
Abstract: The invention comprises N-substituted dehydroemetine derivatives of the general formula <FORM:0977789/C1/1> where R is a C2 or C3 alkyl or hydroxyalkyl group; non-toxic acid addition salts and bismuth halide addition complexes of these compounds; and processes for preparing the compounds in which (1) 2-dehydroemetine is directly N-alkylated, (2) the N-acyl derivative is prepared which is then reduced, (3) 2-dehydroemetine is reacted with the appropriate aldehyde and the condensation product reduced, and (4) an allylic ketone of the general formula <FORM:0977789/C1/2> is reduced directly or via the thioketal. Detailed examples describe the preparation of (1) N-ethyl-2, 3-dehydroemetine and (2) N-n-propyl-2, 3-dehydroemetine via amide intermediates as in process (2) above. The above compounds may be used as amoebicides.  According to the Provisional Specification, R may be an alkyl, hydroxyalkyl or esterified hydroxyalkyl group having 1-7 carbon atoms, especially an n-butyl group.  Specifications 960,182 and 977,788 are referred to.
Patent GB-1197323-A (GB)
Title: Polymers containing Sulphonic Acid Groups
IPC: C08F28/00
Filed: 1967-09-12
Abstract: 1,197,323. Polymers of (meth)acrylamidosulphonic acid monomers. FARBENFABRIKEN BAYER A.G. 12 Sept., 1967 [16 Sept., 1966], No. 41591/67. Heading C3P. Polymers are prepared by homopolymerizing or copolymerizing 2 - acryloylamino - 2,2- dimethylethane - 1 - sulphonic acid or the corresponding methacryloylamino compound. Comonomers specified are ethylene, vinyl acetate, vinyl or vinylidene chloride, styrene, maleic anhydride, acrylic or methacrylic acid and nitriles, esters and amides thereof, butadiene, chlorobutadiene and isoprene. Polymerization may be effected in solution, emulsion or dispersion using catalysts such as hydrogen peroxide, di-t-butyl peroxide, benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, persulphates, aliphatic azo compounds and redox systems. In examples, the sulphonic acid monomers are homopolymerized, and copolymerized with (a) acrylonitrile and methyl acrylate, (b) acrylonitrile and vinylidene chloride, and (c) vinyl chloride and ethylene, the copolymers being used to form fibres and films.
Patent GB-1085756-A (GB)
Title: Automatic lathe having measuring control
IPC: B23Q15/04
Filed: 1964-10-15
Abstract: 1,085,756. Automatic lathes. C. WELCKER. Oct. 15, 1964 [Nov. 8, 1963], No. 42084/64. Headings B3B and B3T. In a multi-spindle automatic lathe means are provided to automatically correct the position of the cutting tool 5 in the event of variations in the desired size of a finished workpiece. In operation, a previously machined workpiece 3 is positioned in a measuring station 10 and any variation from the desired size is transmitted from the measuring apparatus 11 to a controller 13 and subsequently to high frequency heating unit 15. The heating unit effects the expansion of an expansion bar 9 rigidly attached to the tool slide. The bar co-operates with an abutment 8 on the spindle drum 1 so that variations in the length of the expansion bar 9 effect the position of the cutting tool for a subsequent workpiece to be machined. The measuring station may be on the machine or positioned externally thereof.
Patent GB-1359833-A (GB)
Title: Safety device for a normal-to-reverse rotation change-over switch in a movie camera
IPC: G03B19/18
Filed: 1971-09-09
Abstract: 1359833 Cinematography NIPPON KOGAKU KK 9 Sept 1971 [30 Sept 1970] 42157/71 Heading G2E A cine camera has an electric motor 6, a clutch (gears 15, 16 moved by lever 12) which can selectively connect the motor 6 to film takeup shaft 9 or a film metering device (gear 18 and switches 51, 52) and an inter-locking mechanism which prevents a forward/reverse switch controlling the motor 6 to be placed in reverse when the motor 6 is connected to the shaft 9. As shown the clutch lever 12 connects the motor 6 to shaft 9 through gears 4, 14, 10. Simultaneously the bar 12b prevents the plate 26 carrying contacts 27, 28 of the forward/reverse switch from being raised by handle 33 and tooth 12a holds gear 18 fixed. The lever 12 can be moved clockwise about pin 13 by handle 12c against the action of spring 17. This releases gear 18 and permits movement of handle 33 upwards whilst connecting motor 6 via gears 4, 16 and 15, 11 to gear 18. Simultaneously continued forward movement of the motor 6 moves the gear 18 forwards so that both switches S1, S2 are now closed. Rotation of gear 18 is limited by pin 25 abutting one of the contacts 22, 23. Thus after one rotation of gear 18 forwards switch 52 is opened and filming will stop. Pushing switch handle 33 into reverse will energize the motor 6 in reverse, and reverse drive will continue until switch S1 is opened. During reverse 52 is closed after pin 25 no longer abuts contact 23 and so if handle 33 is lowered forward filming can recommence. The limited rotation of gear 18 acts as a film metering device. Such a mechanism can be used in producing a dissolve on the film.
Patent GB-1486596-A (GB)
Title: Coding head for postal envelopes and a coding station fitted therewith
IPC: G06K17/00
Filed: 1974-10-02
Abstract: 1486596 Stacking sheets HOTCHKISS BRANDT MECANISATION 2 Oct 1974 [2 Oct 1973] 42808/74 Heading B8R [Also in Division B6] A receiver for envelopes in a postal code printer (see Division B6) comprises a receptacle 52 into which envelopes, fed to a point 76 by an endless belt and nip rollers 49, are pushed by a spiral surfaced pusher 51. The base of the receptacle 52 is inclined by about 20 degrees to the horizontal, and is formed by freely rotatable rollers 57. An inclined baffle 53 is loaded by a counter-weight system (not shown) to urge the stack of envelopes in the receptacle towards the pusher 51. The pusher 51 is rotated by a motor 56 through an electromagnetic clutch permitting single revolutions of the pusher under control of a photo-electric detector 55.
Patent GB-1064483-A (GB)
Title: Improvements in or relating to the preparation of o-methylhydroxylamine derivatives
Inventor: SNYDER JACK AUSTIN
Filed: 1963-09-20
Abstract: Dialkali metal and alkaline earth metal salts of O - methylhydroxylamine N,N - disulphonic acid are prepared by O-methylating a dialkali metal or alkaline earth metal salt of hydroxylamine N,N-disulphonic acid by adding 1 to 2 mols of alkali metal hydroxide per mol of said disulphonate reactant, the temperature being maitained below 0 DEG  C. until a pH of 8 is reached, and thereafter adding to the mixture 0.8 to 2.0 mols of dimethylsulphate per mol of the sulphonate reactant but using no more di-methylsulphate than alkali metal hydroxide. The disulphate reactants may be prepared by the Raschig process, preferably by adding an aqueous alkali or alkaline earth metal bi-sulphite solution to an alkali or alkaline earth metal nitrite solution, and then adding SO2 at 0 DEG  C. or below for not more than 2 hours. O-Methylhydroxylamine may be prepared by heating the mixture obtained by the above O-methylation to reflux with 1 to 1.5 mols of alkali mer mol of dimethylsulphate used in the methylation until consumption of alkali ceases, adding a suitable acid to the mixture thus obtained to reduce the pH thereof to 2 or below, heating the resulting acid mixture to reflux until both sulphonate groups of the O-methylhydroxylamine disulphonate have been hydrolysed, adding a suitable non-volatile base to the resulting mixture, and recovering the liberated O-methylhydroxylamine.  Said recovery may be effected by distillation after sufficient base has been added to maintain the pH of the mixture between 3 and 9 during distillation.  Alkali and alkaline earth metal salts of O-methylhydroxylamine-N-sulphonic acid may be prepared by adding a suitable acid to the mixture resulting from the above O-methylation to lower the pH to below 7 and heating until one of the sulphonate groups of the O-methylhydroxylamine disulphonate is hydrolysed.
Patent GB-1448896-A (GB)
Title: Method of and apparatus for the removal of sea growth from submerged ship hull surfaces
IPC: B63B59/08
Filed: 1974-10-03
Abstract: 1448896 Cleaning shlps' hulls SEA MESH CORP 3 Oct 1974 [4 Jan 1974] 42975/74 Heading B7M [Also in Division F3] Explosive cord netting 40 is arranged alongside a ship's hull (or other marine structure) and detonated to remove incrustations from the hull. The netting consists of cords arranged in a diamond pattern and connected by connectors 32 which do not transmit combustion. The diamonds may be arranged so that combustion propagates vertically successive columns detonating sequentially through delay units; or horizontally, with ignition travelling along one row, then along the next highest and so on. The netting is preferably spaced from the hull by a distance approximately equal to 1¢ times the minor diagonal of the diamond, but may be inclined to the vertical (e.g. by 3-5 degrees) so as to be closer to the hull at the top than the bottom. This is achieved by adjusting weights 58 on a framework consisting of supports 62 and poles 50, 56 on which the netting is mounted.
Patent GB-1162308-A (GB)
Title: Improvements in or relating to Surgical Packages
Inventor: KURTZ LEONARD DAVID
IPC: A61B17/06
Filed: 1967-09-22
Abstract: 1,162,308. Suture packages. L. D. KURTZ, and W. H. SHAVE. 22 Sept., 1967 [6 Oct., 1966], No. 43152/67. Heading B8C. A surgical suture 20, with a needle 21 attached to one end, is placed on a main section B of a sheet 10 of card or the like, starting at end 22 and continuing in zig-zag fashion until a small amount of the suture adjacent the needle 21 is left extending over side edge 14. In one form, with panels A and C extending from opposite sides of section B, panel A of the sheet is folded over the suture 20, the needle 21 is brought over on to the top of panel A, Fig. 4, and finally panel C, which may bear an identifying label, is folded over to cover the needle lying on panel A. In use, the panel C is first lifted, the needle 21 allowed to slide off panel A, and the suture 20 extracted by pulling on the needle without lifting panel A. The suture and sheet may be further packaged in a sealed outer envelope, and the whole package may be sterilized. In modifications, Figs. 7-9 and 10-12 (not shown), the arrangement of the panels A, B, C is varied. Further, the panel C may be dispensed with and the needle attached to panel A or alternatively a fourth panel may be added to strengthen the package.
Patent GB-984685-A (GB)
Title: Improvements in or relating to electric vacuum cleaners
IPC: A47L5/24
Filed: 1962-11-15
Abstract: 984,685. Hand held vacuum cleaners. J. HANDS, and W. HANDS. Feb. 17, 1964 [Nov. 15, 1962], No. 43163/62. Heading A4F. A hand held electric vacuum cleaner has a two part casing detachably assembled together by threading one part into the other, the one part 1 having a concentric inlet aperture 7 in its base, and housing a removable air permeable dust bag 3 the rim of which makes an air-tight seal with the casing and the other part 2 having a con centric aperture 17 in its base and housing a motor 4 mounted in a cradle 14 anc suction fan 5 drivable off a twelve volt car battery. The rim of the dust bag 3 is held ir contact with the casing 1 by a resilient ring 6. The hose 9 is assembled to the casing 1 by inserting the rigid tapered spigot 10 on one end, into the resilient grommet 8 secured around the aperture 7. In a modification the motor is mounted eccentrically of the fan which is driver off it through a gear train.
Patent GB-1045792-A (GB)
Title: Improvements relating to the treatment of aqueous effluents
Inventor: BROUGHALL FREDERICK GEORGE
IPC: C02F1/72
Filed: 1961-12-05
Abstract: Aqueous effluents containing polyhydric phenols are oxidized in the presence of lime. The treated liquid may be further biologically oxidized and/or treated with acid or CO2.